baber/WOPTO huggingface dataset:
Patent ES-2420556-B1 (ES)
Title: Luminaria para superficies rectangulares
Inventor: MORET CODINA MARIA CRISTINA
IPC: F21S4/00
Filed: 2012-02-20
Granted: 2014-09-29
Abstract: La luminaria para superficies rectangulares comprende una pluralidad de diodos emisores de luz (1) dispuestos en fila, incluyendo cada uno de dichos diodos emisores de luz (1) su óptica (3, 4) correspondiente, y se caracteriza por el hecho de que algunos de dichos diodos emisores de luz (1) comprenden ópticas asimétricas (3) y el resto de dichos diodos emisores de luz (1) comprenden ópticas asimétricas extensivas (4).#Permite optimizar el número de diodos emisores de luz para espacios rectangulares, debido a que la mayoría de luz incide en la estantería o lugar a iluminar y tiene pocas pérdidas, a diferencias de las luminarias conocidas actualmente que utilizan ópticas no muy asimétricas, que provocan una gran densidad de iluminación o una gran pérdida de luz si están más separadas de la superficie a iluminar.
Patent ES-2426019-B1 (ES)
Title: Procedimiento de captación de información para el despliegue virtual y dispositivo asociado al mismo
Inventor: SOLABERRIETA MENDEZ ENEKO
IPC: A61C11/00
Filed: 2012-03-16
Granted: 2014-08-22
Abstract: Procedimiento de captación de información para el despliegue virtual y dispositivo asociado al mismo, que comprende un cuerpo principal que permite la recogida de información mediante medios de recogida de información para realizar la simulación asistida por ordenador, donde dicho cuerpo principal comprende una primera parte la cual permite su acoplamiento al elemento que se pretende captar, y donde dicho cuerpo principal comprende además una segunda parte la cual permite al dispositivo ser objetivo de los medios de recogida de información, los cuales en conjunto con otros medios de recogida de información posicionados sobre el elemento que se pretende captar, permiten obtener unas coordenadas de referencia óptimas para un sistema asistido por ordenador.
Patent ES-2566977-B1 (ES)
Title: Producto alimenticio que comprende xilosa, p-cimenol y proteasa
Inventor: BORRELL VALLS JAUME
IPC: A23K20/189
Filed: 2014-10-16
Granted: 2017-02-13
Abstract: Producto alimenticio que comprende xilosa, p-cimenol y proteasa.#La presente invención se refiere a un producto alimenticio que comprende xilosa, p-cimenol y proteasa, así como a su procedimiento de obtención y su uso en la alimentación de animales.
Patent ES-2613264-B1 (ES)
Title: Dispositivo protector bucal con depresor lingual
Inventor: RODRIGUEZ BERNAL GUILLERMO JUAN
IPC: A61B1/24
Filed: 2015-10-21
Granted: 2018-03-06
Abstract: Dispositivo protector bucal con depresor lingual que comprende una primera funda (1) para proteger el labio y los dientes del maxilar superior y una segunda funda (2) para proteger el labio y los dientes del maxilar inferior, estando ambas fundas unidas y articuladas entre sí por un regulador de apertura y bloqueo (3), que mantienen la boca del paciente abierta para introducción de instrumentos de exploración o intervención a través de la cavidad bucal, en el que la segunda funda (2) tiene practicada una ranura (4) pasante para introducción de un depresor lingual (5) semirrígido que deprime y retiene la lengua. La primera (1) y segunda (2) fundas comprenden además unas prolongaciones laterales (6) para proteger la hilera de premolares y molares y al menos una cinta (7) de unión de sus extremos posteriores, pasando por la parte posterior de la cabeza del paciente, para otorgar mayor estabilidad al dispositivo.
Patent ES-2562985-B1 (ES)
Title: Composición farmacéutica para el tratamiento de lesiones de la piel
Inventor: BLANXART SENA ENRIQUE
IPC: A61P17/00
Filed: 2015-12-31
Granted: 2016-09-14
Abstract: El objeto de esta patente de invención es una composición farmacéutica para el tratamiento de lesiones de la piel que contiene una combinación de 4 sustancias activas, en concreto Diclofenaco sódico, Clotrimazol, Sulfanilamida y Alcohol bencílico, todas ellas en una formulación de administración por vía tópica en la piel, de consistencia semisólida en una estructura de gel hidrófilo, con una textura viscosa y translúcida, fácilmente aplicable sobre la piel y susceptible de ser aplicada de forma uniforme. La formulación contiene por 1 gramo (1.000 mg.) Diclofenaco sódico en una proporción de entre 10 mg. y 60 mg.; Clotrimazol en una proporción de entre 10 mg. y 60 mg.; Sulfanilamida en una proporción de entre 50 mg. y 150 mg. y Alcohol bencílico en una proporción de entre 10 mg. y 80 mg., contenidos en una misma formulación.
Patent HR-PK20000851-B1 (HR)
Inventor: PETAR URIC
IPC: C06C5/06
Filed: 2000-12-12
Abstract: Postupak za proizvodnju niskoenergetske cijevčice kod kojeg se ekstrudirano crijevo (3) od plastike s unutrašnje strane oblaže eksplozivom u prahu, karakterističan po tomu što se eksplozivni prah na ušću alata ekstrudera unosi kroz alat za ekstruziju (1) u cjevčicu (3).Patent sadrži još10 patentnih zahtjeva.
Patent HR-P20010277-B1 (HR)
Inventor: VAHERVUO KARI
IPC: A61K31/16
Filed: 2001-04-12
Abstract: Oralni kompaktni pripravak, naznačen time, da sadrži farmaceutski učinkovitu količinu entakapona, nitekapona ili njihove farmaceutski prihvatljive soli i umreženi derivat celuloze. Patent sadrži još 16 patentnih zahtjeva.
Patent HR-P20020574-B1 (HR)
Title: Urea compounds having muscarinic receptor antagonist activity
Inventor: MAMMEN MATHAI
IPC: A61P1/04
Filed: 2002-07-04
Abstract: Compounds of formula <CHEM> are useful as intermediates in the preparation of certain urea compounds having muscarinic receptor antagonist activity.
Patent HR-P20201569-B1 (HR)
Inventor: TOTMAN MEL
IPC: H01M10/613
Filed: 2020-10-02
Abstract: Predviđeni su baterijski modul i postupak hlađenja baterijskog modula. Baterijski modul (100) sadrži kućište (101) i mnoštvo baterijskih ćelija (102) smještenih unutar kućišta, ulaz (103) za dovod rashladne tekućine u kućište i izlaz (104) za odvođenje rashladne tekućine izvan kućišta, prvi držač ćelije (109) i drugi držač ćelije (110) za držanje baterijskih ćelija, svaki držač ćelija smješten je unutar kućišta, prvi držač ćelije i drugi držač ćelija su međusobno razmaknuti i svaki držač ćelija je spojen s kućištem. Modul nadalje sadrži prvi kanal za hlađenje (901) koji je djelomično omeđen poklopcem kućišta (201) i prvim držačem ćelije, drugi kanal za hlađenje (902) je djelomično omeđen postoljem kućišta (108) i drugim držačem ćelije, srednji kanal za hlađenje (903) je djelomično ograničen prvim držačem ćelije i drugim držačem ćelije. Prvi kanal za hlađenje i drugi kanal za hlađenje fluidno su povezani na oba i na ulazni i na srednji kanal za hlađenje, a srednji kanal za hlađenje je fluidno povezan s izlazom. Baterijske ćelije strše unutar prvog kanala za hlađenje i/ili drugog kanala za hlađenje.A battery module and a battery module cooling process are provided. The battery module (100) comprises a housing (101) and plurality of battery cells (102) located inside the housing, an inlet (103) for supplying coolant to the housing and an outlet (104) for draining coolant outside the housing, a first cell holder (109) and a second cell holder (110) for holding the battery cells, each cell holder is located inside the housing, the first cell holder and the second cell holder are spaced apart and each cell holder is connected to the housing. The module further comprises a first cooling channel (901) which is partially bounded by the housing cover (201) and the first cell holder, the second cooling channel (902) is partially bounded by the housing base (108) and the second cell holder, the middle cooling channel (903) is partially limited by the first cell holder and the second cell holder. The first cooling channel and the second cooling channel are fluidly connected to both the inlet and the middle cooling channel, and the middle cooling channel is fluidly connected to the outlet. Battery cells protrude within the first cooling channel and/or the second cooling channel.
Patent JO-1373-B1 (JO)
Title: Cadmium cleaning of phosphate
Inventor: SOREN HUNDEBOL
Filed: 1985-06-15
Granted: 1986-11-30
Abstract: A method of removing cadmium for raw phosphate in a known apparatus comprising a preheater section (2.13) a reactor section (3.4.5) a cooler section(7) and an exit gas cleaning section having a cadmium condenser(6.20.21) where the reactors (3.5) work in series and are formed as suspension reactors alternatively as a suspension reactor and a fluid- bed reactor, and where the treated raw phosphate in the first reactor having a short material retention time is suspended in a gas/ fuel mixture and through a flash- process heated to a reaction temperature of 750-1050 c to be further heated subsequently in a reducing or neutral atmosphere in the second having strongly reduced gas supply as compared with the first reactor and having at least times as long material retention time, by which the cadmium content is substantially expelled from the raw phosphate and carried away with exit gas from the second reactor, while the cleaned phosphate is passed to the cooler section of the plant for further treatment
Patent JO-2673-B1 (JO)
Title: New diosmetin compounds, a process for their preparation and pharmaceutical compositions containing them
Inventor: JEROME PAYSANT
Filed: 2009-03-17
Granted: 2012-06-17
Abstract: compounds of formula(I): wherein R1,R2 and R3, which may be the same or different,each represent a hydrogen atom or the group of formula (A): Medicaments
Patent KR-790000567-B1 (KR)
Title: Production method of acrylonitril
Inventor: JACQUES MARION
Filed: 1974-02-05
Granted: 1979-06-06
Abstract: Acrylonitrile(I) was prepd. by ammoxidn. of propene(II) using catalysts contg. metal oxides in the ratio of 2.0-20.0 : 0.1-10.0; 0.1-10.0: 0.5-10.0; 0.2-11.5; 0-15.0; 0.005-1.0 Co-Fe-Bi-W-Mo-Si-K(Ca). Thus, passing a flow of II 5.7, propane 0.3, NH3 7.0, air 65.0, and steam 22.0 vol. % over the above catalysts at 54.1l/hr and 420≰C gave 78.8% I at 83.5% selectivity 94.3% II conversion.
Patent KR-810001320-B1 (KR)
Title: Process for the preparation of new isobutyranide
Inventor: ESANU A
Filed: 1977-03-17
Granted: 1981-10-14
Abstract: New isobutyramide derivs. (I; R1 = halogen; n = 2-6), which have superior anticholesteremic and hypolipemic activity were prepd.  Thus, mixture of 1l hydrous dichloroethane, 74g triethylamine, 52g 3-aminopropionitryl and 172g p-chloro-phenoxyisobutylchloride was refluxed for 4 hr, washed with sodium carbonate and crystallized with di-isopropylether to give N-cyanoethyl p-chlorophenoxyisobutyramide.
Patent KR-810000972-B1 (KR)
Title: Cutting machine for manufacturing sawdust
Inventor: GAWASOE GEISUKE
IPC: B27L11/00
Filed: 1978-01-04
Granted: 1981-08-25
Abstract: Cutting machine for manufacturing sawdust consists of circular saw-assembly constitution(1) having a multiple of circular saw(3) sloped to shaft line of rotating shaft(10) rotated at high speed by driver, supply frame(7) for supplying material, and cover(11) guiding sawdust manufactured by cutting to the exhaust passageway(12).
Patent KR-810001127-B1 (KR)
Title: Process for preparation of cyclohexane carboxylic acid
Inventor: NODA KANJI
IPC: C07C61/08
Filed: 1978-04-26
Granted: 1981-09-20
Abstract: Cyclohexanecarboxylic acid (I), useful as inflammation inhibitors and antiallergics, were prepd. by the hydrolysis of II(X = cyano, lower alkoxycarbonyl, carbamoyl).  Thus, 120 g a mixt. of cis- and trans-I and 7 g sodium hydroxide were reacted in methanol-H2O at 50-55oC for 3 hr to give 70 g cis-l-methyl-4-isohexylcyclohexanecarboxylic acid(m.p. 92-94oC).
Patent KR-800000162-B1 (KR)
Title: Typewriter
Inventor: KIM JUNG MOON
IPC: B41J7/02
Filed: 1978-11-17
Granted: 1980-03-09
Abstract: This typewriter prints the character by stricking it on the rear end with the hammer after focusing the preselected character on the printing position by moving the character matrix box from the front to the rear and from right to left.  The selecting system is moved by both a longitudinal and a transverse driving mechanism in the carriage when the keyboard is pressed.
Patent KR-790000837-B1 (KR)
Title: Process for making a pva buff
Inventor: JANG KEUM SEK
Filed: 1978-03-14
Granted: 1979-07-18
Abstract: Anti-abrasion polishing buff having stressrecovering property, was prepd. by foaming the soln. mixed with water-soluble high mole. PVA powder, dil. HCl, water-soluble PVA fibre(3-15mm length), surface-active foaming agent, and polishing powder, and by acetylating only the outer surface pf PVA fibre with formalin at 30-80≰C for 90min., and by terminating the acetylation.
Patent KR-830000934-B1 (KR)
Title: 전기광학 디스플레이를 갖는 전자시계
IPC: G04C5/00
Filed: 1979-02-13
Granted: 1983-05-11
Abstract: 내용 없음.
Patent KR-890000400-B1 (KR)
Title: Gelling system
Inventor: VERNON ALAN JOHN
IPC: A23L13/40
Filed: 1981-10-10
Granted: 1989-03-16
Abstract: A gelling system is provided.  Thus, a compn. contg. 1.5% (w/w) amorphophallus ext., 1% K-carageenan, 0.382% NaH2PO4.2H2O, 0.618% Na2HPO4 and 96.5% H2O showed a gelling system.
Patent KR-880000775-B1 (KR)
Title: Automatic method & apparatus for stopping loom retation at a constant crank angle
Inventor: SAINEN TSUDOMU
IPC: D03D51/08
Filed: 1982-09-11
Granted: 1988-05-06
Abstract: Method of stopping a loom automatically at predetermined crank angle comprises issuing a stop signal to effect braking action when a stop demand signal is generated, and at a moment when the detected current crank angle becomes equal to the calculated difference between a selected stop crank angle and an initial stop lag angle determined by field obervation.  Pref. any ensuing difference between selected and actual stop angle is detected, and the initial stop lag angle is replaced by a corrected value.  Loom inertia and falling brake efficiency are both compensated.
Patent KR-840002393-B1 (KR)
Title: Method for preparing culture medea for growing mushroom
Inventor: CHO SUNG-WON
IPC: A01G1/04
Filed: 1983-01-25
Granted: 1984-12-27
Abstract: By pressing rice straw with a pressure roller mushroom mycelium easily penetrate into the deep parts of the straw. The softened rice straw is then crossed and piled up maximize the oxygen provision and water content and to evenly distribute adsorption of the mycelium. Pressed softened rice straws are crossed and piled up, and a mixture of broadleaf tree sawdust 1% and rice-polish 0.5% are sown. It is then sterilized at 60-70≰C for 5-6hr retaining a moisture of 70-80%.
Patent KR-940002153-B1 (KR)
Inventor: HAFERL PETER E
IPC: H04N5/63
Filed: 1983-01-27
Granted: 1994-03-18
Abstract: 내용 없음
Patent KR-860001997-B1 (KR)
Title: Process for preparing de(mycinosyloxy)tylosin derivatives
Inventor: WILD GENE MURIEL
IPC: C07H17/08
Filed: 1983-06-30
Granted: 1986-11-12
Abstract: De(mycinosyloxy)tylosin derivs. (I) were prod. by fermentation of Streptomyces fradiae ATCC 31733 in a medium contg. assimible C,N, and minerals under aerobic condition. Thus, the 2nd stage broth of S. fradiae was inoculated into the medium contg. 0.875 fish meal, 1.5 Corn flour, 0.875 Corn gluten, 0.2 sugarbeet, 3.0 soybean oil, 0.09 lecithin, and 91.32% H2O and incubated at pH 7.2. 28≰C for 8-9days with aeration and agitation. The broth(925 liter) was filtered and washed. The filtrate and washing was extd. with CH3CH2CO2CH3. The ext. was extd. with H3PO4 soln. The aq. soln. was extd. with CH2Cl2 and dried to give the solid. The solid was refluxed in CH3CH2CO2CH3 solvent to yield 4.5 g crude (I).
Patent KR-890004539-B1 (KR)
Title: Super heatresistant cerment and process of producing the same
Inventor: YOSHIMURA HIKONORI
IPC: C23C16/30
Filed: 1984-01-12
Granted: 1989-11-13
Abstract: The cermet contains (by wt.) 10-65 (25-55)% solid solution of a carbonitride of Ti and W, 0.01-1 (0.03-0.2)% MgO and W as binder. The cermet can further contain 0.5-10 (2-6)% Y2O3 and/or Al2O3.  The carbonitride can further contain at least one group Va metal.  The cermets are used in the production of small cutting plates for cutting tools.  The cutting plates contain at least one surface layer consisting of an oxide or oxynitride of Al; a carbide, nitride or carbonitride and oxycarbonitride of Ti- a carbide, nitride, carbonitride and oxynitride and oxynitride of Zr and/or a carbide, nitride, carbonitride, carbonitride and oxynitride of Hf.
Patent KR-910007432-B1 (KR)
Inventor: HAGIWARA TAKAAKI
IPC: H01L27/10
Filed: 1984-07-18
Granted: 1991-09-26
Abstract: 내용 없음.
Patent KR-910009782-B1 (KR)
Inventor: BOLAND BERNARD W
IPC: H01L21/76
Filed: 1984-11-17
Granted: 1991-11-30
Abstract: 내용 없음.
Patent KR-880001527-B1 (KR)
Title: Steel analyis method using lazor emitting
Inventor: DANIMODO WADARU
IPC: G01N21/71
Filed: 1984-12-19
Granted: 1988-08-19
Abstract: An infra-red pulse laser beam irradiates a sample such that energy density on the surface of the sample is 2 X 10 power 9 watts per mm squared or more, so that a satisfactory emission spectrum can be obtained.  Light emitted from the surface of the sample is received through a path hold under an atmosphere of inert gas at a solid angle of 16 degrees or more.  The light then forms an image at an inlet slit of a spectroscope so that an emission spectrum which is low in variations can be obtained for a long period of time.  The emitted light generating white noises is excluded, but the subsequently emitted light is quantively analysed.
Patent KR-890000753-B1 (KR)
Title: Intake system for v-type engine
Inventor: ASAUMI HIROJI
IPC: F02B75/18
Filed: 1985-03-06
Granted: 1989-04-03
Abstract: This invention relates to a connecting way of intake pipes from the surge tank to the the banks on both sides.  In the Vengine, a surge tank is disposed in about middle between the banks, and the intake pipes from the surge tank are connected running crossway to each other to the respective side banks, the upper parts above the crossing of the pipes being bent in U-shape to connect to respective sides of the surge tank.
Patent KR-920000978-B1 (KR)
Inventor: OSIADA KOICHI
IPC: G06F17/21
Filed: 1985-03-25
Granted: 1992-01-31
Abstract: 내용 없음.
Patent KR-890003442-B1 (KR)
Title: Polymer temperature sensor
Inventor: HOSAKA TOMIHARI
IPC: C08L77/12
Filed: 1985-06-15
Granted: 1989-09-21
Abstract: High mol. wt. temp. sensor is prepd. by adding the aldehyde condensn. polymer of the phenol cpds. to the polymer metrix which comprises polyamide contg. N-alkyl substd. amide component or ethylamide component.  The Fig. 1 showes the wet-resistablity of the phenolic condensn. polymer when the ratio of polyamide and N-substd. amide component is changed.
Patent KR-890003359-B1 (KR)
Title: Oil-resistant rubber composition
Inventor: MORI YOZI
IPC: C08L23/00
Filed: 1985-08-19
Granted: 1989-09-19
Abstract: Oil-resistant rubber compsn. comprises (A) 90-10 wt.% of an unsatd. nitrile-conjugated diene rubber with a delta Tg of above 58≰C and an ave. bound nitrile content of 15-50 wt.%; (B) 10-90 wt.% of an ethylene-propylene copolymer rubber, a natural rubber and/or a polyisoprene; and (C) 0-50 wt.% of styrene type polymer and/or polyalkenemer with respect to 100 wt.% (A) and (B).  This rubber cpd. has high oil-resistance, strong mechanical properties and low temp. resistance.
Patent KR-940000153-B1 (KR)
Title: Underoil primary circuit breaker
Inventor: MIKULECKY HARVEY W
IPC: H01H33/75
Filed: 1986-02-06
Granted: 1994-01-07
Abstract: An underoil primary circuit breaker (10) having a fixed contact assembly (26) and a rod contact (24), a trip-free latch mechanism (18) for moving the rod contact (24) toward and away from the fixed contact (82), a temperature responsive magnetically controlled trip assembly (36) for releasing the latch mechanism (18), and cross blast arc interrupter (14) for extinguishing the arc produced between the rod contact (24) and fixed contact assembly (26), the interrupter (14) including a core (60) formed from an arc extinguishing material and defining within a reinforced case (54) a pressure chamber (56), a pressure relief chamber (58), an arc passage (62) connected to the pressure chamber (56) and a vent passage (66) connected to the relief chamber (58); high and low pressure exhaust ports (68,70) are provided between the arc passage (62) and the vent passage (66) and a throttling tube (69) is provided in the pressure relief chamber (56) to vent gases into the transformer.
Patent KR-900004886-B1 (KR)
Title: Memory testcricuit
Inventor: TORU HURUYAMA
IPC: G11C29/26
Filed: 1986-04-18
Granted: 1990-07-09
Abstract: Identical test data is simultaneously written into several memory cells, and subsequently simultaneously read out. Two logical operations of the read out test data are obtaind, and the correct functioning of the memory cells is determined on the basis of the logical operations. Pref. the first operaion is a logical product of the read out test data and the second operation, a logical sum of that data. Additionally an exclusive logical sum is obtained and used to provide an additional criterion for the correct functioning.
Patent KR-900000949-B1 (KR)
Title: Combustion burner
Inventor: AKIYAMA DETSUO
IPC: F23L15/00
Filed: 1986-06-25
Granted: 1990-02-19
Abstract: The burner includes a gas supply tube (5) for the supply of gaseous fuel, on inner barrel (7) surrounding the gas supply tube with an annular space (8) formed between the gas supply tube and the inner barrel, a combustion air preheating passage (3) disposed at the exterior of the inner barrel in fluid communication with the annular space, and an exhaust passage (11) provided with an exhaust gas extractor positioned downstream of an exhaust duct (12) for the discharge of the exhaust gases through the exhaust duct.
Patent KR-890004930-B1 (KR)
Title: Hermetic compressor
Inventor: SHIIBAYASHI MASAO
IPC: C08F267/02
Filed: 1986-07-07
Granted: 1989-11-30
Abstract: The encapsulated spiral compressor for refrigerant comprises housing containing a motor with vertical shaft (14) carried in a frame which divides the housing interior into an upper and a lower chamber.  The upper shaft end drives an orbiting spiral member meshing with a fixed spiral member with inlet near its perimeter and central outlet to the upper chamber, which connects to the lower chamber with compressor outlet (19) via a duct(18b) in the perimeter of the frame.  The housing has top and bottom covers welded to a cylindrical sheet metal side wall (1b) with longitudinal weld seam (1n) which is arranged in the area where the duct (18b) extends through the frame.
Patent KR-880002272-B1 (KR)
Title: Preparation method for 1-substituted oxindole-3-carboxamide
Inventor: KADIN SOUL BENARD
IPC: A61K31/40
Filed: 1986-07-07
Granted: 1988-10-21
Abstract: Title compds. (I) [X=H, F, Cl, Br, C1-4 alkyl, alkylthio, alkoxy, C3-6 cycloalkyl, nitro, TMF, etc.; Y=Halo, C1-4 alkyl, alkoxy, alkylthio; X, Y=4,5-, 5-6-, or 6,7-methylene dioxy; A=NH-R2, R3, NH- CO-R3; R1, R2=H, C1-6 alkyl; C3-7 cycloalkyl, heterocyclic, methylated hetero cyclic, etc. , useful as an anodyne or an anti- inflammatory agent, are prepd.
Patent KR-890003277-B1 (KR)
Title: Electric heather
Inventor: TAKESHIDA SEISHYUKI
IPC: H02H11/00
Filed: 1986-10-02
Granted: 1989-09-06
Abstract: The two heaters with two changeover switches are connected in parallel for mains voltages in the 100V range and in series for voltages in the 200V range.  One heater is connected between the neutral line and a triac, the other side of the triac being connected to the live rail.  The second heater is connected between live and normally closed relays which serve to operate the heaters in parallel.  The voltage detecting circuit causes a transistor to energise the relay and operate the heaters in series when the main voltage reaches 200-240V.  Alternatively two relays are used for the switching.